Abstract: A flat panel display (FPD) support with a hinge assembly has a base, a stand and a hinge assembly. The stand has a base bracket being securely mounted on the base, an arm protruding from a front edge of the base bracket and a panel bracket protruding from an upper edge of the arm. The hinge assembly is mounted on the panel bracket and is attached to a FPD. Therefore, the base can customized to allow the FPD and the stand to stably stand on the base. Moreover, the stand and the base may be disassembled and folded conveniently.

Abstract: A flat panel display (FPD) support has a supporting bracket, a connecting assembly pivotally connected to the supporting bracket and a pulling assembly mounted between the supporting bracket and the connecting assembly. The connecting assembly is attached to an FPD to allow the supporting bracket to hold the FPD on a plane. The pulling assembly pulls the supporting bracket toward the panel bracket and a weight of the FPD allows the FPD and the supporting bracket leaning to each other to stay in a specific angle. Therefore, a visual angle of the FPD relative to a plane is easily adjusted by the supporting assembly. The FPD with the FPD support is light, simple and portable and is conveniently packaged for sale or transportation and does not occupy a large area when in use.

Abstract: A trivalent chromium electroplating solution in accordance with the present invention contains at least one trivalent chromium salt for electroplating a chromium coating layer on a workpiece. By using the low toxic trivalent chromium to substitute highly toxic hexavalent chromium, an electroplating process of the present trivalent chromium electroplating solution has less pollution.

Abstract: A flat panel display (FPD) support has a supporting bracket, a connecting assembly pivotally connected to the supporting bracket and a pulling assembly mounted between the supporting bracket and the connecting assembly. The connecting assembly is attached to an FPD to allow the supporting bracket to hold the FPD on a plane. The pulling assembly pulls the supporting bracket toward the panel bracket and a weight of the FPD allows the FPD and the supporting bracket leaning to each other to stay in a specific angle. Therefore, a visual angle of the FPD relative to a plane is easily adjusted by the supporting assembly. The FPD with the FPD support is light, simple and portable and is conveniently packaged for sale or transportation and does not occupy a large area when in use.

Abstract: A flat panel display (FPD) support has a supporting bracket, a connecting assembly pivotally connected to the supporting bracket and a leaf spring mounted between the supporting bracket and the connecting assembly. The connecting assembly is attached to an FPD to allow the supporting bracket to hold the FPD on a plane. The leaf spring pulls the supporting bracket toward the panel bracket and a weight of the FPD allows the FPD and the supporting bracket leaning to each other to stay in a specific angle. Therefore, a visual angle of the FPD relative to a plane is easily adjusted by the supporting assembly. The FPD with the FPD support is light, simple and portable and is conveniently packaged for sale or transportation and does not occupy a large area when in use.

Abstract: A trivalent chromium-based electroplating solution in accordance with the present invention a trivalent chromium salt, a bivalent nickel salt, a complex agent, a conductive salt, a buffering agent and an additive for electroplating a chromium-nickel alloy deposit on a component. By using the lowly toxic trivalent chromium to substitute highly toxic hexavalent chromium, an electroplating procedure with the present trivalent chromium-based electroplating solution has less pollution and high current efficiency to allow the electroplating performing at the room temperature.

Abstract: A flat panel display (FPD) support with a hinge assembly has a base, a stand and a hinge assembly. The stand has a base bracket being securely mounted on the base, an arm protruding from a front edge of the base bracket and a panel bracket protruding from an upper edge of the arm. The hinge assembly is mounted on the panel bracket and is attached to a FPD. Therefore, the base can customized to allow the FPD and the stand to stably stand on the base. Moreover, the stand and the base may be disassembled and folded conveniently.

Abstract: A latching mechanism for being mounted between a housing and a cover of an electronic device includes a sliding member, a first latching portion, a second latching portion and an elastic member. The sliding member is slidably disposed on the cover and has a pushed portion located at a side of the cover. The first latching portion is fixed to the sliding element. The second latching portion is fixed to the housing and adapted for engaging with the first latching portion. The elastic member is disposed between the sliding member and the cover for providing an elastic force to the sliding member against the cover.

Abstract: A duel-axle hinge has two adjusting assemblies, a connecting assembly, two lifting assemblies and a positioning gear assembly. The adjusting assemblies are attached to a screen of a liquid crystal display (LCD). The lifting assemblies are attached to a support of the LCD. The screen is turned via the adjusting assemblies to adjust the visual angle of the screen. The screen is turned via the lifting assemblies to adjust the height of the screen. The positioning gear assembly can provide positioning function to hold the screen at a desired height.

Abstract: A flat panel display stand has a base, a post, a resilient assembly and a holding bracket. The post is securely mounted perpendicularly on the base and has a channel defined inside the post and two guide slots formed through the post opposite to each other. The resilient assembly is mounted slidably in the channel of the post and has two friction feet and a coil spring. The friction feet are mounted respectively in the guide slots and generate adequate friction to hold the resilient assembly in place. The coil spring has an end secured in the channel and provides a resilient force to hold the resilient assembly in position. The holding bracket is connected to a flat panel display and is attached to the resilient assembly through the guide slots. The flat panel display stand is compact and facilitates adjustment of the position of the flat panel display.

Abstract: A multi-stage hinge assembly has a first connecting board, a second connecting board, a first hinge, a second hinge, an inner mounting lever and an outer mounting lever. The first connecting board has a first ring, a second ring and a recess. The second connecting board has a first ring and a second ring. The first hinge is mounted on the connecting boards. The second hinge is mounted on the connecting boards. The inner mounting lever is mounted pivotally on the second mounting bracket of the first hinge and the rotating head of the second hinge and has two retaining plates, a holding frame and a spring. The outer mounting lever is mounted pivotally on the second mounting bracket of the first hinge and the rotating head of the second hinge.

Abstract: A hinge with multiple resilient spacers has a body, a rotating element, multiple bolt assemblies and multiple resilient spacers. Both of the body and the rotating element have corresponding through holes. The bolt assemblies are mounted through the through holes of the body and the rotating element. The resilient spacers are mounted on the bolt between the body and the rotating element. Each resilient spacer has at least one surface selectively abutting the body and the rotating element. Each surface of the resilient spacer has multiple concentric grooves formed in the surface. With such an arrangement, the surfaces of the resilient spacers partially abut the body or the rotating element. Therefore the rubbing area of the resilient spacers are reduced. Such that greasing may be unnecessary and abrasion or noise may effectively prevented.

Abstract: A trivalent chromium electroplating solution in accordance with the present invention contains at least one trivalent chromium salt for electroplating a chromium coating layer on a workpiece. By using the low toxic trivalent chromium to substitute highly toxic hexavalent chromium, an electroplating process of the present trivalent chromium electroplating solution has less pollution.

Abstract: A hinge assembly has multiple components that have mounting holes and mounting protrusions respectively. The mounting protrusions are formed on the components and correspond to and are mounted rotatably in the mounting holes respectively. Such that the hinge assembly is assembled without any additional connecting elements like bolts and fabrication of the hinge assembly may be convenient and low-cost.

Abstract: A duel-axle hinge has two adjusting assemblies, a connecting assembly, two lifting assemblies and a positioning gear assembly. The adjusting assemblies are attached to a screen of a liquid crystal display (LCD). The lifting assemblies are attached to a support of the LCD. The screen is turned via the adjusting assemblies to adjust the visual angle of the screen. The screen is turned via the lifting assemblies to adjust the height of the screen. The positioning gear assembly can provide positioning function to hold the screen at a desired height.

Abstract: A multi-stage hinge assembly has a first connecting board, a second connecting board, a first hinge, a second hinge, an inner mounting lever and an outer mounting lever. The first connecting board has a first ring, a second ring and a recess. The second connecting board has a first ring and a second ring. The first hinge is mounted on the connecting boards. The second hinge is mounted on the connecting boards. The inner mounting lever is mounted pivotally on the second mounting bracket of the first hinge and the rotating head of the second hinge and has two retaining plates, a holding frame and a spring. The outer mounting lever is mounted pivotally on the second mounting bracket of the first hinge and the rotating head of the second hinge.

Abstract: A method for chemical etching is disclosed for taking away oxidized film and removing cut as well as punched edge burs of harden-treated carbon steel (SK3, SK4 and SK5). Thereby, the fillet edge of the cut section is achieved. An oxidized film with a thickness of several micrometers is formed when a cut and punched steel is quenched and tempered at high temperature. Due to high strength and hardness of the steel, the oxidized film and edge burs are difficult to be removed by mechanical grinding. Therefore, a suitable electrolyte composes of only a little chemical reagent and oxidizer in deionized water is used to remove the oxidized film and punched bur simultaneously using chemical etching method.

Abstract: A method for chemical etching is disclosed for taking away oxidized film and removing cut as well as punched edge burs of harden-treated carbon steel (SK3, SK4 and SK5). Thereby, the fillet edge of the cut section is achieved. An oxidized film with a thickness of several micrometers is formed when a cut and punched steel is quenched and tempered at high temperature. Due to high strength and hardness of the steel, the oxidized film and edge burs are difficult to be removed by mechanical grinding. Therefore, a suitable electrolyte composes of only a little chemical reagent and oxidizer in deionized water is used to remove the oxidized film and punched bur simultaneously using chemical etching method.